varialbes clear

exercises/variables/README.md

@@ -5,5 +5,5 @@ When a variable is immutable, once a value is bound to a name, you can’t chang
 You can make them mutable by adding mut in front of the variable name.
 
 ## Further information
-
+tt
 - [Variables and Mutability](https://doc.rust-lang.org/book/ch03-01-variables-and-mutability.html)

exercises/variables/variables1.rs

@@ -9,6 +9,6 @@
 // I AM NOT DONE
 
 fn main() {
-    let x = 5;
+    let x = 7;
     println!("x has the value {}", x);
 }

exercises/variables/variables3.rs

@@ -4,7 +4,7 @@
 // I AM NOT DONE
 
 fn main() {
-    let x = 3;
+    let mut x = 3;
     println!("Number {}", x);
     x = 5; // don't change this line
     println!("Number {}", x);

exercises/variables/variables4.rs

@@ -4,6 +4,6 @@
 // I AM NOT DONE
 
 fn main() {
-    let x: i32;
+    let x: i32=50;
     println!("Number {}", x);
 }

exercises/variables/variables5.rs

@@ -6,6 +6,6 @@
 fn main() {
     let number = "T-H-R-E-E"; // don't change this line
     println!("Spell a Number : {}", number);
-    number = 3;
+    let number=3;
     println!("Number plus two is : {}", number + 2);
 }

exercises/variables/variables6.rs

@@ -4,8 +4,9 @@
 /*
 I AM NOT DONE
 */
-const NUMBER=1;
+const NUMBER:i32 =1;
 
 fn main() {
     println!("Number {}", NUMBER);
+    
 }